Nissan Maxima Service and Repair Manual: U1243 display unit

Nissan Maxima Service and Repair Manual / Driver information & multimedia / Audio, visual & navigation system / DTC/circuit diagnosis / U1243 display unit

Description

Part name  Description 
DISPLAY UNIT 
  • Display image is controlled by the serial communication from AV control unit.
  • Inputs the RGB image signal (RGB, RGB area and RGB synchronizing) from AV control unit and the auxiliary image signal from the auxiliary input jacks.
  • Outputs the synchronizing signals (HP and VP) to the AV control unit 

DTC Logic

Nissan Maxima. DTC Logic

Diagnosis Procedure

1.CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT

Check display unit power supply and ground circuit

2.CHECK CONTINUITY OF COMMUNICATION CIRCUIT

Nissan Maxima. CHECK CONTINUITY OF COMMUNICATION CIRCUIT

  1. Turn ignition switch OFF.
  2. Disconnect display unit connector and AV control unit connector.
  3. Check continuity between display unit harness connector M141 (A) terminals 11, 22 and AV control unit harness connector M154 (B) terminals 56, 44.
  4. Check continuity between display unit harness connector M141 (A) terminals 11, 22 and ground.

Nissan Maxima. CHECK CONTINUITY OF COMMUNICATION CIRCUIT

Nissan Maxima. CHECK CONTINUITY OF COMMUNICATION CIRCUIT

3.CHECK COMMUNICATION SIGNAL

Nissan Maxima. CHECK COMMUNICATION SIGNAL

  1. Connect display unit connector and AV control unit connector.
  2. Turn ignition switch ON.
  3. Check signal between display unit harness connector M141 terminal 11 and ground with an oscilloscope or CONSULT.

Nissan Maxima. CHECK COMMUNICATION SIGNAL

4.CHECK COMMUNICATION SIGNAL

Nissan Maxima. CHECK COMMUNICATION SIGNAL

Check signal between display unit harness connector M141 terminal 22 and ground with an oscilloscope or CONSULT.

Nissan Maxima. CHECK COMMUNICATION SIGNAL

    U1232 steering angle sensor
    DTC Logic Diagnosis Procedure ADJUST THE PREDICTIVE COURSE LINE CENTER POSITION OF THE STEERING ANGLE SENSOR When U1232 is detected, adjust the predictive course line center position of the s ...

    U1263 USB
    DTC Logic Diagnosis Procedure 1.CHECK USB HARNESS Visually check USB harness. ...

    Other materials:

    P0448 evap canister vent control valve
    Description The EVAP canister vent control valve is located on the EVAP canister and is used to seal the canister vent. This solenoid valve responds to signals from the ECM. When the ECM sends an ON signal, the coil in the solenoid valve is energized. A plunger will then move to seal ...

    Starting the vehicle
    1. After starting the engine, fully depress the foot brake pedal before moving the shift lever out of the P (Park) position. 2. Keep the foot brake pedal depressed and move the shift lever into a driving gear. 3. Release the parking brake and the foot brake pedal, then gradually start the ...

    Lighting & turn signal switch
    Removal and Installation NOTE: The lighting and turn signal switch is integral with the combination switch assembly. REMOVAL Unlock steering wheel. CAUTION: Before servicing, disconnect both battery terminals and wait at least three minutes Do not use air tools or electric tools ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2025 Copyright www.nimainfo.com
    0.0131